NASA discovers small black holes and releases ultra-high-definition space photos-Hong Kong unwire.hk

NASA shocked the world after publishing its first black hole photo in 2019, and recently released 4 ultra-high-definition black hole photos again. Several small black hole clusters can be found in the photos released recently.

Recently, NASA combined the data collected by the Hubble Telescope and the Gaia Telescope of the European Space Agency, and published 4 ultra-high-definition black hole photos, showing outwards in the core of the globular star cluster NGC 6397, about 7800 light-years away from the Earth. , Found a collection of multiple small black holes.

The central area of ​​NGC 6397 has a very dense star and is a so-called core collapse globular cluster. NASA originally planned to find the controversial “medium-mass black hole” (medium-sized black hole) in the central area of ​​NGC 6397, but accidentally observed a large number of small black holes in globular clusters. Although it was different from the original plan, Perhaps it opens another direction for the study of the universe or black holes.

source:NASA

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